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annotate src/filterwidget.cpp @ 88:3916cb3c9105

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Add new FilterSort model that allows to include empty values
author Andre Heinecke <andre.heinecke@intevation.de>
date Fri, 19 Jun 2015 14:26:16 +0200
parents 4e16fbd10945
children b8c7644a9d49
rev   line source
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1 /* Copyright (C) 2015 by ETH Zürich
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2 * Software engineering by Intevation GmbH
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3 *
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4 * This file is Free Software under the GNU GPL (v>=2)
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5 * and comes with ABSOLUTELY NO WARRANTY!
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6 * See LICENSE.txt for details.
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7 */
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8 #include "filterwidget.h"
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9
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10 #include <QComboBox>
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11 #include <QHBoxLayout>
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12 #include <QGroupBox>
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13 #include <QSortFilterProxyModel>
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14 #include <QAbstractItemModel>
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15 #include <QLineEdit>
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16 #include <QDebug>
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18 FilterWidget::FilterWidget(QSortFilterProxyModel *model, bool addWithEmptyChk,
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19 QWidget *parent, Qt::WindowFlags f) :
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20 QWidget(parent, f),
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21 mModel(model),
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22 mWithEmptyChk(addWithEmptyChk) {
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23 Q_ASSERT(model);
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24 setupGUI();
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26 void (QComboBox:: *idxChanged)(int) = &QComboBox::currentIndexChanged;
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27 connect(mCombo, idxChanged, this,
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28 &FilterWidget::filterChanged);
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29 //connect(mCombo, SIGNAL(currentIndexChanged(int)), this, SLOT(filterChanged()));
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30 connect(mEditLine, &QLineEdit::textChanged, this,
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31 &FilterWidget::filterChanged);
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32 }
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34 void FilterWidget::headersChanged() {
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35 mCombo->blockSignals(true);
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36 QAbstractItemModel *newSource = mModel->sourceModel();
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37 Q_ASSERT(newSource);
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38 mCombo->clear();
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39 mColFilterMap.clear();
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40 int addedItems = 0;
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41 for (int i=0; i < newSource->columnCount(); i++) {
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42 QString entry = newSource->headerData(i, Qt::Horizontal).toString();
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43 if (!entry.startsWith("#")) {
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44 mCombo->addItem(entry);
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45 mColFilterMap.insert(addedItems++, i);
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46 } else {
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47 if (!newSource->setHeaderData(i, Qt::Horizontal, entry.remove(0,1), Qt::DisplayRole)) {
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48 qDebug() << "Setting header data failed.";
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49 }
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50 }
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51 }
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52 mCombo->blockSignals(false);
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53 }
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54
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55 void FilterWidget::filterChanged() {
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56 QString filterText = mEditLine->text();
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57 mModel->setFilterKeyColumn(mColFilterMap.value(mCombo->currentIndex()));
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58 mModel->setFilterWildcard(filterText);
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59 emit filterHasChanged();
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60 }
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61
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62 void FilterWidget::setupGUI() {
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63 QHBoxLayout *root = new QHBoxLayout;
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65 QGroupBox *baseGroup = new QGroupBox(tr("Filter"));
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66 root->addWidget(baseGroup);
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68 QHBoxLayout *baseLayout = new QHBoxLayout;
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69 baseGroup->setLayout(baseLayout);
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70
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71 mCombo = new QComboBox;
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72 baseLayout->addWidget(mCombo);
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74 mEditLine = new QLineEdit;
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75 mEditLine->setPlaceholderText(tr("Filter expression"));
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76 mEditLine->setClearButtonEnabled(true);
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77 baseLayout->addWidget(mEditLine);
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78
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79 if (mWithEmptyChk) {
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80 mEmptyChk = new QCheckBox(tr("Include empty fields"));
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81 baseLayout->addWidget(mEmptyChk);
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82 connect(mEmptyChk, &QCheckBox::stateChanged, this, &FilterWidget::includeEmptyChanged);
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83 }
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84
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85 setLayout(root);
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86 }
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87
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